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hamidoon123

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The equation for the main stage of contact process is:

10th Class Federal Board Exams Quizzes MCQs Quizzes Federal Board Class 10th Chemistry Chapter No 4

Question:
The equation for the main stage of contact process is:

Option A):
SO₂ (g)    + O₂ (g)  →   2SO₃(g)
Option B):
2SO₂ (g)    + O₂ (g)  → 2SO₃(g)
Option C):
2SO₂ (g)    + O₂ (g)  → SO₃(g)
Option D):
2SO₃+H₂O (l)   → H₂SO₄(ag)

Correct Answer is Option B):
2SO₂ (g)    + O₂ (g)  → 2SO₃(g)